I've had an interest in photography for over twenty years and all I see are photographs. The seascapes water has an etheral look due to the 1 sec exposure causing blurring due to movement. The pink middle area of the sky looks slightly unnatural due to downsampling, likewise with the yellow plants and white highlights on the rocks.
Who's to say the images were not enhanced a little in PS before uploading. The fact is, there is nothing really unusual about them other than a particular approach and the effect of downsampling and displaying on a monitor.
Sark